If you're afraid of saying something that hurts someone, then try to think carefully before you speak. Also, you ___5___ write down your angry thoughts as if you were shouting it out to the world. This allows you to express your anger.
这个题的答案是can,可是后面as if you were shouting it out to the world.用的是过去进行啊,如果说是虚拟的话,主句不应该用could吗,因为虚拟语气主句用could/should/might/might+动词原形。而且虚拟语气可以用过去进行时吗?